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drm/amdgpu: add debugfs for kfd system and ttm mem used

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This keeps track of kfd system mem used and kfd ttm mem used.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Sierra 2022-06-13 13:31:41 -05:00 • committed by Alex Deucher
parent f9af3c16bf
commit 3d2af401cf
3 changed files with 24 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
View file

@ -172,6 +172,9 @@ int amdgpu_queue_mask_bit_to_set_resource_bit(struct amdgpu_device *adev,
struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
struct mm_struct *mm,
struct svm_range_bo *svm_bo);
#if defined(CONFIG_DEBUG_FS)
int kfd_debugfs_kfd_mem_limits(struct seq_file *m, void *data);
#endif
#if IS_ENABLED(CONFIG_HSA_AMD)
bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);

19
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
View file

@ -2888,3 +2888,22 @@ bool amdgpu_amdkfd_bo_mapped_to_dev(struct amdgpu_device *adev, struct kgd_mem *
}
return false;
}
#if defined(CONFIG_DEBUG_FS)
int kfd_debugfs_kfd_mem_limits(struct seq_file *m, void *data)
{
spin_lock(&kfd_mem_limit.mem_limit_lock);
seq_printf(m, "System mem used %lldM out of %lluM\n",
(kfd_mem_limit.system_mem_used >> 20),
(kfd_mem_limit.max_system_mem_limit >> 20));
seq_printf(m, "TTM mem used %lldM out of %lluM\n",
(kfd_mem_limit.ttm_mem_used >> 20),
(kfd_mem_limit.max_ttm_mem_limit >> 20));
spin_unlock(&kfd_mem_limit.mem_limit_lock);
return 0;
}
#endif

2
drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c
View file

@ -101,6 +101,8 @@ void kfd_debugfs_init(void)
kfd_debugfs_rls_by_device, &kfd_debugfs_fops);
debugfs_create_file("hang_hws", S_IFREG | 0200, debugfs_root,
kfd_debugfs_hang_hws_read, &kfd_debugfs_hang_hws_fops);
debugfs_create_file("mem_limit", S_IFREG | 0200, debugfs_root,
kfd_debugfs_kfd_mem_limits, &kfd_debugfs_fops);
}
void kfd_debugfs_fini(void)